A piston assembly for reducing clearance volume in a reciprocating compressor for compensating for piston tilt and improving the volumetric efficiency of the compressor includes a piston located within a piston cylinder, the piston having a first end and a second end, a wrist pin associated with the first end of the piston, and a cylinder head/valve assembly associated with the second end of the piston, wherein at least a portion of the second end of the piston includes an angled portion. The piston having the angled portion can be used with oil free cylinders and trunk type pistons. The piston can also be used in a multiple stage, multiple cylinder compressor including a series of piston assemblies. A method of increasing the volumetric efficiency of a reciprocating compressor can also be achieved using the piston having an angled portion.


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    Title :

    Compressor piston shape to reduce clearance volume


    Contributors:

    Publication date :

    2018-07-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



    Compressor Piston Shape to Reduce Clearance Volume

    HRITZ JEFFREY / MITSCH MATTHEW D | European Patent Office | 2017

    Free access

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    Anderson, R.J. / Beckman, M.A. | Engineering Index Backfile | 1926



    Piston travel and shoe clearance

    Murphy, H.M.P. | Engineering Index Backfile | 1921


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    Takiguchi,M. / Kikuchi,H. / Furuhama,S. et al. | Automotive engineering | 1988